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68252266877 = 471452175891
BaseRepresentation
bin111111100100001001…
…101111000101111101
320112011121200101202012
4333210021233011331
52104240040020002
651204334541005
74634232460544
oct774411570575
9215147611665
1068252266877
1126a44697333
1211289667765
136589327742
14343686715b
151b96e7dd52
hexfe426f17d

68252266877 has 4 divisors (see below), whose sum is σ = 69704442816. Its totient is φ = 66800090940.

The previous prime is 68252266853. The next prime is 68252266879. The reversal of 68252266877 is 77866225286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68252266877 - 212 = 68252262781 is a prime.

It is a super-3 number, since 3×682522668773 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68252266879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726087899 + ... + 726087992.

It is an arithmetic number, because the mean of its divisors is an integer number (17426110704).

Almost surely, 268252266877 is an apocalyptic number.

It is an amenable number.

68252266877 is a deficient number, since it is larger than the sum of its proper divisors (1452175939).

68252266877 is a wasteful number, since it uses less digits than its factorization.

68252266877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452175938.

The product of its digits is 27095040, while the sum is 59.

The spelling of 68252266877 in words is "sixty-eight billion, two hundred fifty-two million, two hundred sixty-six thousand, eight hundred seventy-seven".

Divisors: 1 47 1452175891 68252266877